Complete exact INTERSECT behavior

src/scene/convert/solid3d_tess.rs

@@ -159,6 +159,10 @@ pub fn kernel_body(solid: &Solid3D) -> Option<KernelBody> {
     kernel_acis_body(&solid.acis_data)
 }
 
+pub fn kernel_region_body(region: &Region) -> Option<KernelBody> {
+    kernel_acis_body(&region.acis_data)
+}
+
 pub fn kernel_surface_body(surface: &Surface) -> Option<KernelBody> {
     kernel_acis_body(&surface.acis_data)
 }